how to understand this sentence"the generation ga"

问题描述:

how to understand this sentence"the generation ga"
the generation gap is bound to narrow

代沟一定会缩小.
be bound to:一定会;束缚于
例如:The business is bound to pick up this winter if we can keep our doors open.要是我们能继续营业的话,今年冬天生意一定会好起来的.